GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2009 🢒 Corvette 🢒 Diagnostic Navigation 🢒 Vehicle Diagnostic Information 🢒 Symptoms - Displays and Gages

Important: The following steps must be completed before using the symptom diagnostic tables.

  1. Before using the symptom diagnostic tables, perform the following tests in order to determine that there are no DTCs set, and that the control modules can communicate via the serial data link:
    2. •  Diagnostic Starting Point - Vehicle
    •  Diagnostic System Check - Vehicle
  2. Review the system operation in order to understand the system functions. Refer to the following description and operations:
    3. •  Instrument Cluster Description and Operation
    •  Indicator/Warning Message Description and Operation
    •  Driver Information Center (DIC) Description and Operation
    •  Head Up Display (HUD) Description and Operation
    •  Audible Warnings Description and Operation

Visual/Physical Inspection
    • Inspect for aftermarket devices which can affect the operation of the instrument panel cluster (IPC) or the audible warnings system. Refer to Checking Aftermarket Accessories.
    • Inspect the accessible system components or the visible system components for obvious damage or for obvious conditions which can cause the symptom.
    • Inspect for the proper fluid levels.

Intermittent

Faulty electrical connections or wiring may be the cause of intermittent conditions. Refer to Testing for Intermittent Conditions and Poor Connections.

Symptom List

Refer to a symptom diagnostic procedure from the following list in order to diagnose the symptom:

Gages

    •  Engine Oil Pressure Gage Inaccurate or Inoperative
    •  Fuel Gage Inaccurate or Inoperative
    •  Speedometer and/or Odometer Inaccurate or Inoperative
    •  Tachometer Inaccurate or Inoperative
    •  Instrument Cluster Gages Inoperative

Indicators

    •  ABS Indicator Malfunction
    •  Air Bag Indicator Circuit Malfunction
    •  Brake Warning Indicator Malfunction
    •  Charge Indicator Malfunction
    •  Courtesy Lamps Malfunction
    •  Door Ajar Indicator Malfunction
    •  Door Lock Indicator Malfunction
    •  Engine Oil Temperature Indicator Always On
    •  Front Fog Lamps Malfunction
    •  Headlamps Malfunction
    •  Lights On Indicator Malfunction
    •  Low Washer Fluid Indicator Malfunction
    •  Malfunction Indicator Lamp (MIL) Diagnosis
    •  Passenger Presence System Indicator Circuit Malfunction
    •  Rear Fog Lamps Malfunction
    •  Seat Belt Indicator Circuit Malfunction
    •  Security Indicator Malfunction
    •  Service Column Lock Indicator Always On
    •  Service Column Lock Indicator Inoperative
    •  Trunk Ajar Indicator Malfunction
    •  Traction Off Indicator Malfunction
    •  Turn Signal Lamps and/or Indicators Malfunction

Driver Information Center

Driver Information Center (DIC) Switch Malfunction

HUD

Head Up Display (HUD) Malfunction

Audible Warnings

Chime Malfunction